Mash-tun or the like.



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a'rEs PATENT curro CHARLES B. DAVIS, OF NEW YORK, N. Y.

MASH-TUN 0R THE LIKE.

Specification of Letters Patent.

.Patented oet. 1,7, rei e.

Appucationfnea January e, 1915. serial No. 5.

To all whom t may concern Be it known that I, CHARLES Davis', a citizen ofthe United States, residing at New York, in the county of New York and State of .New York, have invented certain new and useful Improvements in Mash- Tunsor the like, of-which the following is l a specification.

This invention relates to improvements in mashftuns or the like, and one of the objects I of the invention is to provide a mash-tun for-straining the extract from the spent grains or husks without danger of clogging.

Another object of the invention is to provide an apparatus attaining the object above referred to which is verysimple and economical to manufacture and which, on account of its simplicity, is not apt to get out of order. l i

Other objects and. aims of the invention, more orless broad than those stated above, together with the advantagesinherent, will ,be in part obvious and in part speciically referred to in the course of' the following description of the elements, combinations,l

arrangements ofparts, and applications of principles constituting the invention; and

the scope of protection contemplated will appear from the claims.

In the accompanying drawings, which are i to be taken as a part of this specification, and in which I have shown a merely prefer-red form of embodiment of the invention, Figure 1 is a vertical section illustrating a'IInash-tun having its bottom fitted with my iin-proved sieve-means; Fig. 2 is a fragmentary plan of a portion ofthe double bottom or sievesgFig. 3 is a view similar to Fig. 2 but showing the sieves in a different relation; Fig. 4- is a diagram illustrating the course of the liquid in its passage from theinterior of the tun to the exterior thereof through thesieve, and Fig. 5 is a vertical sectional view through another form of sieve or bottom.

Referring to the numerals on the drawing, 6 represents a receptacle or tun of the sort which may be employed in the brewing or distilling arts, adapted to receive the l grains and water or other liquid, and wherein the inashing operation adapted to take place.

7 representsy the bottom of the tun or receptacle, which is interiorlyprovided with annular steps 8, 9 and 10, the last constituting the actual inside bottom of' the tui.

The tun is 'also provided with what may be termed a false bottom,'comprising in Figs. l, 2 and 3, a pair of superposed plate-members 11v and l2, the member 11 being supported on the step 9, and upon the ribs 14- which project upwardly from the step or bottom 10, and the plate 12 overlying the plate 11 and resting upon the same and upon the step 8. In the form shown in Figs. l, 2 andI 3, these two plates 11 and 12 have openings l5 and 16 formed therein, which openings are arranged so that they can be made to register o1' not toregister in accordance with the direction of reciprocation of an -actuating rod 17 which extends through a stuflng box'18 in the sident lthe tuns bottom 7. It is not intendedordinariljv that the respective openings in the twoplates 11 and vl2 shall be-brought into registry. Normally, they are left out of registry and the filtration of the liquid contents of the tuns takes place because of the l fact that the two plates'are not in absolute The consequence is' that the liquid may enter the apertures 15 water-tight contact.

' to prevent the escape of even very small particles of solid matter, and clogging is avoided. Furthermore, I prefer that the openings'in-the upper plate, indicated at l5, shall be elongated as shown, wider than the width of the average barley malt or other grain used in the mashing process, and `narrower than uthe length ot' such grains, :.Tl'ie result off this particular arrangement .is that though grains may lodge iii the open ings 15, they cannot, on account of the closeness of the' plates, pass between the plates,

, and furthermore they will be washed out of the openings 15 on account of the agitation ot the contents or the tun which accompanies the mashing operation.

lVhen it is desired to filter the contents of the tun, the agitation is stopped and a valve 19 in the bottom of the tun is opened, whereupon `the grains, on account ofthe'particular size and shape of the openings 15, straddle these openings and vform a sort of mat, through which the ,y liquid passes from the tun and out through theA vibe 20.

I -conceive one of the important features of my invention to be the provision of aV tun-bottom having plate-like members in Plates in' a -sort' of Superposed relation, and' almost in Water tight contact with the spaces between the' plates opening both to the interior and the exterior of .the tun, so that the liquid con?` tents' ofthe tuny may escape las-,tweenl the nini, 'while the escape of solid particles is prevented.

Another characteristic of the invention 1s in the-size and shape of the openings gether if necessary by means of spot-weld- ,forms ofthe devicdthat is,

, both forms the tendency lng or `rivets arranged at interi/als', close enoughtoefether to prevent the passage .of solidI particles between them., While, at

the same ztiinc, they "permit eif the escape -f of llquidbetween adjacent plates 1n' a nlm.,

and the path the liquid freni-the inte rior to the exterior ofthe tun through the,` sort of bottom shown in Fig.' 5 is also indim catedl evthc diagram of Fig'. ,in both the one shown in Fig. l and the "one in 5, the liquid tal-.ces a tortuous path, which in- .s cludes intermediate itsends portion de rembers which are in ight contact, And in e the solii. inat-4 'y dowiward. l'liius clois- .ed To not fined between plateclose but notfivate ter isy not direct ,95mg is iur'blt matter in another ,vay, .in each forni oi? tileV invention the actual straining; ,takes place in horizontal directions, Yinstead o'l' m, ver

tical directions the case in all prior Y I. devicesI 'with which am. familiar.

tion or shown in the accompanying inasmuch inanv could lee made in the above construction., and man37 anna ently Widely dilerent embodiments c45 invention could he made withoutde'- from the scope thereof, it is intended th all matter contained in.. the above descripw .'tiiereeetwsen,

tion ings shall be interpreted as illustrative and' not |in a limiting sense. It 1s also to be understood that the language used 1n the vfollowing claims is intended to cover all the generic and specific features of the, invention herein, described and all statements of the scope of the -invention which, as a matter oifllangruag'e, might be should be noted that thepresent appli cation" is plication Serial No. 714,565, filed-August wel., wie, which application l' propose to abandon as soon as the present one is of record.- "clain'iz' l i L A mash-.tun or the like havii'xfsel bottom comprising two platedike'meinbers in f superposed relation, said plate-like mem- `bers being close enough together to Sulbstantially {inrevent the entrance or ioassagireI or solid particles between them, but being- .out of watertight contact.so nthat liquid'- inajy' and pass between tnemin a film, one of the platelilre menfiiocrs having' an' openinfrtlierein which communicates with the interior oit' the tuo., and the other pla-te` like member having' which communicates with the exterior of the tun, seid openings lie-ing out oirefristrv, then opening; inthe 'plate-like member which ni `communication with the interior of;

said to-'ifall in part a continuation of my ap- Y an opening' therein the tun being' wider thanfthe width ofthe j average b ev malt grain and narrower than the l g li osuclx grain; f

a, s -tun or the likehaving abettcm compri, .i plates in superposed rela# and iiorizontally disposed, the plates losing' close snoeien together te substantially prevent the estranceand passage between thorn of s 'hat' out )i1-Water? tol'ilfcontac V l nass estive 'filete hai-Jimi. 1"

in, andthe' apertures ti l, f n rv", the open...igs n the upper plate i the Width of' the average portare th grain., j l

whereofi aiix my' signan ci? tim v itnesses. altLlS l* ',l ain and narrower than the' rice 

